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Joel, Auto Service Technician
Category: Car
Satisfied Customers: 1603
Experience:  18 years and growing GM, ASE certified. Specializing in Chevy, Buick, Olds, Pontiac.ASK!
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Awd service light on 2002 bravada

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awd service light on 2002 bravada

Hello and welcome.

When this light comes on the dash, it means that the tranfercase control module for the All Wheel Drive has detected a problem.

You would need to get that module scanned for trouble codes. These codes give an indication as to what part of the system has a problem.

The problem could any number of sensors, a problem with the encoder motor, a faulty module itself, or just needs a software update.

No way to tell without getting the computer scanned for codes.

Without a scanner, about the only thing you can do yourself is to check the ATC fuse #8 in the underhood fuse block.



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